MC9S12P64VQK Freescale Semiconductor, MC9S12P64VQK Datasheet - Page 302

• Manufacturer Part Number: MC9S12P64VQK
• Description: 16-bit Microcontrollers - MCU 16 BIT 64K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12P64VQK

• Rohs: yes
• Core: S12
• Processor Series: MC9S12P
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 64 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 4 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 5 V
• Operating Temperature Range: - 40 C to 105 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT
• Interface Type: I2C, SCI, SPI
• Program Memory Type: Flash

Freescale’s Scalable Controller Area Network (S12MSCANV3)
8.4.7.3
A message is successfully received and shifted into the foreground buffer (RxFG) of the receiver FIFO.
This interrupt is generated immediately after receiving the EOF symbol. The RXF flag is set. If there are
multiple messages in the receiver FIFO, the RXF flag is set as soon as the next message is shifted to the
foreground buffer.
8.4.7.4
A wake-up interrupt is generated if activity on the CAN bus occurs during MSCAN sleep or power-down
mode.
8.4.7.5
An error interrupt is generated if an overrun of the receiver FIFO, error, warning, or bus-off condition
occurrs. MSCAN Receiver Flag Register (CANRFLG) indicates one of the following conditions:
8.4.7.6
Interrupts are directly associated with one or more status flags in either the MSCAN Receiver Flag Register
(CANRFLG) or the MSCAN Transmitter Flag Register (CANTFLG). Interrupts are pending as long as
one of the corresponding flags is set. The flags in CANRFLG and CANTFLG must be reset within the
interrupt handler to handshake the interrupt. The flags are reset by writing a 1 to the corresponding bit
position. A flag cannot be cleared if the respective condition prevails.
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Overrun — An overrun condition of the receiver FIFO as described in
Structures,” occurred.
CAN Status Change — The actual value of the transmit and receive error counters control the
CAN bus state of the MSCAN. As soon as the error counters skip into a critical range (Tx/Rx-
warning, Tx/Rx-error, bus-off) the MSCAN flags an error condition. The status change, which
caused the error condition, is indicated by the TSTAT and RSTAT flags (see
“MSCAN Receiver Flag Register
Enable Register
Receive Interrupt
Wake-Up Interrupt
Error Interrupt
Interrupt Acknowledge
This interrupt can only occur if the MSCAN was in sleep mode (SLPRQ =
1 and SLPAK = 1) before entering power down mode, the wake-up option
is enabled (WUPE = 1), and the wake-up interrupt is enabled (WUPIE = 1).
It must be guaranteed that the CPU clears only the bit causing the current
interrupt. For this reason, bit manipulation instructions (BSET) must not be
used to clear interrupt flags. These instructions may cause accidental
clearing of interrupt flags which are set after entering the current interrupt
service routine.
(CANRIER)”).
S12P-Family Reference Manual, Rev. 1.13
(CANRFLG)” and
NOTE
NOTE
Section 8.3.2.6, “MSCAN Receiver Interrupt
Section 8.4.2.3, “Receive
Section 8.3.2.5,
Freescale Semiconductor